Supply means for washing machines



Jan. 14, 1941.

' L. PIERCE I 2,228,914

SUPPLY MEANS FOR WASHING MACHINES bri inal Filed March 1a, 1938 2 Sheets-She't 1.

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Jan. 14, 19-41w L, PIERCE I 7 2,228,914

' "SUPPLY MEANS FOR WASHING MACHINES Original Filed March 1a, 1938 2 Sheets-Sheet 2;

ill

Painted .lann l4, .1941

" 'NTED STATES ATENT OFFICE SUPPLY MEANS FOR WASHING MACHINES lLucien Pierce, Maiden, Mass.

Original application March 18, 1938, Serial No. 196,689. Divided and this application August to, Maserati No. 292,670

2 Claims.

are operated by the control mechanism at predetermined intervals to introduce successive pools of water into the machine and to supply meas-' ured quantities of laundering materials with the Water as required for the several steps in the cycle. ter'lals he mingled with the water supply stream prior to entering into the machine, so that they will he quickly and thoroughly distributed through the respective pools in the machine. According to' the, present invention, apparatus is provided for ensuring proper mtrcduction of the various laundering materials into the machine.

For a more complete understanding of the invention, reference may he had to the following description thereof, and to drawings of which:

Figure l is an end elevation of a washing machine showing apparatus embodying the invent'lon,

Figure 2 ure l.

Figure 3 ure it Figure i ure Figure 5 ure i In Figure l a washing machine such as is used in steam laundries is conventionally indicated at Water for the various-washingsand rinsis a section on the line r-s of Figis a section on the line 3-3 of Figisa section on the line ll-"d of Fig is a section on the line i l-tot Figing steps of a cycle is supplied to the machine valve in for the washing machine enters a ver-' tlcal up-take 320 and passes into a horizontal delivery pipe' 322 through a constriction in the pipe It is desirable that such laundering Ina-- formed by an apertured diaphragm M4. The pipe 322 leads into the washing machine casing 2|. A nozzle 32B is connected through a suitable trap 328 to the trough 3M and projects centrally through the aperture in the diaphragm 324. 5

The trap prevents the escape of steam or moist vapor from the washing machine into the trough 300. As indicated in Figure 5, the diaphragm ti l consists of a pair of overlapping plates which slide in grooves and are adjustable toward and from each other hymeans of adjusting screws 7 its so as to vary the clearance between the edges of the opening and the nozzle did. The plates of the diaphragm ti l are initially adjusted when a machine is installed, in order to adapt the opening in the diaphragm to the local water pressure. No further adjustment is then required it pressure conditions in the supply system remain the same. The arrangement of the nozzle ii'lill results in a hollow cylinder of water flowing past the end of the nozzle when washing materials are being supplied therethrough from the trough 3W. Soap is supplied to the trough its irom a suitable source (not shown herein) through an aperture in order to carry the soap eiiec-' to a spray pipe arranged along the upper edges of the trough itll in the vicinity oi the aperture filth. Another hranch oi the pipe leads to an outlet tilt at the uppeinencl oi the trough lltlt so as to wash down the liquid materials which are discharged into the trough irons. the tonic it l. Since the pipe till leads from the up tahe till, it is evident that the water supplied therethrough tor flushing the trough tit flows only when the valve lid is open. The

timing mechanism on the machine is arranged so M that the washing materials, such as soap and the like, are discharged into the trough 300 only during such times as water is being supplied to the machine..'

rtts evident that various modifications and changes may he made in the embodiment of the invention herein illustrated and described without departing from the spirit onscope there of as defined in the following claims.

I-clalm: 1. In a washing machine'having a casing, a water supply duct leading into said casing, an adjustable constriction in said duct, a nozzle projecting through said constriction, and means for supplying laundering materials to said nozzle for discharge therethrough into said duct.

2. In a washing machine, a supply duct for water, a. trough tor laundering materials, a pipe leading from said trough and projecting into said duct, the discharge end of said pipe being directed to discharge said laundering materials in the same direction asvthe flow 01' water in the duct at the discharge end of the pipe, said discharge end also being spaced from the walls of the duct whereby the stream issuing from the pipe is surrounded by the stream of water flow- 5 ing past said orifice.

LUCIEN PIERCE. 

